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erica [24]
3 years ago
8

2. Choose the best answer. Up to % of glaciers are retreating. 50 60 70 80

Chemistry
1 answer:
tankabanditka [31]3 years ago
6 0
I believe it’s 60 percentage
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Which type of reproduction produces an exact copy of the parent organism?
MissTica
Asexual reproduction

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4 years ago
How many moles of oxygen are present in a cylinder of 25.0 liters at a temperature of 0. °C and a pressure of 1.00 atm
Akimi4 [234]

Answer:

1.12 moles

Explanation:

To find the amount of moles, you need to use the Ideal Gas Law:

PV = nRT

In this equation,

-----> P = pressure (atm)

-----> V = volume (L)

-----> n = moles

-----> R = Ideal Gas constant (0.08206 atm*L/mol*K)

-----> T = temperature (K)

After converting the temperature from Celsius to Kelvin, you can plug the given values into the equation and solve for "n".

P = 1.00 atm                     R = 0.08206 atm*L/mol*K

V = 25.0 L                        T = 0. °C + 273 = 273 K

n = ? moles

PV = nRT

(1.00 atm)(25.0 L) = n(0.08206 atm*L/mol*K)(273 K)

25.0 = n(22.4)

1.12 = n

6 0
1 year ago
After boiling a chicken in a stock pot, you let the chicken stock cool down and place it
KATRIN_1 [288]

Answer:

Chicken fat is in the shallowest area because, being hydrophobic and lipid content of chicken, it is the lowest density compound in the broth, therefore it rises and does not precipitate. All fats usually float in liquid media because their density is less than that of water.

On the other hand, the gelatin that forms in the boil of the chicken broth is a gelatinous compound that is very nutritionally rich, consisting of denatured proteins that leave the chicken undergoing aqueous coagulation.

Both do not mix and due to the difference in densities, but in order to dissociate it, it is convenient to use emulsifiers or by cryogenic methods where cold is applied and its division is better.

Explanation:

In liquid media such as chicken broth, or any broth, when proteins or foods that contain a large amount of fats and proteins are boiled, the fatty layer will always be the most superficial because it is the one with the lowest density, therefore, that denatured coagulated protein with water it will be the next layer and finally the solids such as bone or cartilage remains would be in the deepest area because they are the ones with the highest density.

Another method to dissociate these products is through enzymatic activity, throwing enzymes into the broth formed.

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3 years ago
Nuclear energy is made from the element carbon. True or false
asambeis [7]
True <span>Nuclear energy is made from the element carbon</span>
7 0
3 years ago
What is the representative particle for silicon
valentina_108 [34]
<span>The representative particle for silicon is atom of silicon.
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For sodium chloride (NaCl) for example, representative particles are ions.
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